Trying to figure out what could be causing this high pitched whistle noise I'm getting immediately at startup. It happens intermittently, about half of starts and goes away after a few seconds. Seems to happen on cold starts. I'm thinking the noise is coming from the dash or behind the instrument cluster area. At first I thought it might be an idler pulley but found the noise is not coming from the engine. Anybody have any ideas what it could be?
I'll get a recording of the noise and post it here if necessary.